I am trying to use behavior in script runner to default to a particular issue type. However, when I try to do with following code, though it defaults to the required issue type "ABC", it does not allow any other issue type to be selected. Please let me know what modifications are required in the code.
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.security.roles.ProjectRoleManager
import static com.atlassian.jira.issue.IssueFieldConstants.ISSUE_TYPE
def constantsManager = ComponentAccessor.getConstantsManager()
def queryIssueType = constantsManager.getAllIssueTypeObjects().find { it.name == "ABC" }
def IssueType = getFieldById(ISSUE_TYPE)
IssueType.setFormValue(queryIssueType.id)